[Pkg-alsa-devel] Bug#487719: Bug#487719: Bug#487719: alsamixer: function snd_ctl_open failed for default:

[peter at easthope.ca]

From: Elimar Riesebieter <riesebie at lxtec.de>
Date: Thu, 21 May 2015 21:59:23 +0200
> ... please unplug your usb devices and try again?

Both USB audio adapters unplugged.
System rebooted.
Speaker plugged into mainboard sound.
At the end of this message, the last command tried is alsamixer.

Regards,                            ... Peter E.

=============================
peter at dalton:~$ lsmod | grep snd
snd_intel8x0           22372  0 
snd_ac97_codec         84236  1 snd_intel8x0
snd_pcm                53461  2 snd_ac97_codec,snd_intel8x0
snd_page_alloc         12867  2 snd_pcm,snd_intel8x0
snd_timer              22356  1 snd_pcm
snd                    42761  4 snd_timer,snd_pcm,snd_ac97_codec,snd_intel8x0
soundcore              12921  1 snd
ac97_bus               12462  1 snd_ac97_codec

peter at dalton:~$ groups
peter adm mail cdrom floppy sudo audio dip video plugdev staff Debian-exim lpadmin scanner netdev

root at dalton:/home/peter# alsactl init
Found hardware: "ICH" "Realtek ALC655 rev 0" "AC97a:414c4760" "0x105b" "0x0c56"
Hardware is initialized using a generic method

peter at dalton:~$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: SI7012 [SiS SI7012], device 0: Intel ICH [SiS SI7012]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

peter at dalton:~$ aplay -L
null
    Discard all samples (playback) or generate zero samples (capture)
pulse
    PulseAudio Sound Server
sysdefault:CARD=SI7012
    SiS SI7012, SiS SI7012
    Default Audio Device
front:CARD=SI7012,DEV=0
    SiS SI7012, SiS SI7012
    Front speakers
surround21:CARD=SI7012,DEV=0
    SiS SI7012, SiS SI7012
    2.1 Surround output to Front and Subwoofer speakers
surround40:CARD=SI7012,DEV=0
    SiS SI7012, SiS SI7012
    4.0 Surround output to Front and Rear speakers
surround41:CARD=SI7012,DEV=0
    SiS SI7012, SiS SI7012
    4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=SI7012,DEV=0
    SiS SI7012, SiS SI7012
    5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=SI7012,DEV=0
    SiS SI7012, SiS SI7012
    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
iec958:CARD=SI7012,DEV=0
    SiS SI7012, SiS SI7012
    IEC958 (S/PDIF) Digital Audio Output
dmix:CARD=SI7012,DEV=0
    SiS SI7012, SiS SI7012
    Direct sample mixing device
dsnoop:CARD=SI7012,DEV=0
    SiS SI7012, SiS SI7012
    Direct sample snooping device
hw:CARD=SI7012,DEV=0
    SiS SI7012, SiS SI7012
    Direct hardware device without any conversions
plughw:CARD=SI7012,DEV=0
    SiS SI7012, SiS SI7012
    Hardware device with all software conversions

peter at dalton:~$ alsamixer
cannot open mixer: No such device

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